Apparatus for twisting textile fibers or yarns



Sept. 22, 1931. J. BERTHIER- 1,824,464

APPARATUS FOR TWISTING TEXTILE FIBERS OR YARNS y Filed June 12. 1930 2 sheets-sheet4 ,1

j] I f/vz/E/v-ror". 1, 11 Jules Seri/her. l 7 M f7 a nays.

Sept. 22, 1931. J. BERTHIER 1,824,454

v APPARATUS FOR TWISTING TEXTILE FIB-ERS OR'YARNS Filed June 12. 1930 2 Sheets-Sheetv 2 faz@ 13m/wf a MMM Patented. Sept. 22,- 19.31

UNITED STATES PATENT OFFICE TITLES BEBTHIER, 0F CHAMALIEBFS, FRANCE, ASSIGNOR T0 SOCIETE TEXTILE l TWISTOK, F CHAMALIERES, FRANCE, A FRENCH COMPANY u APPARATUS FOB TWISTING TEXTILE FIBEBS 0B YARNS Application meid :une 12, 1930, serial No. 460,762, and in France :une as, ma

My invention relates to apparatus or spindles for doubling or twisting textile fibers by double torsion which'is essentially composed of a bobbin for the doubled threads, or the threads to be doubled, supported by a strap or carrier about whichl be horizontal or inclined, this apparatus can only function regularly 1f 1. the said carrier is maintained stationary. v

2. The regular travel of the yarn through the apparatus is ensured. My invention relates to a doubling or twisting apparatus operating by, double tor- 2c sion and characterized by the use of safety vdevices by which the mechanism is automatically stopped on the occasion of any disturbance to the regular operation of the apparatus, and such safety devices may comprise:

(a) contact elements secured to the rotor of the apparatus.

(b) contact lenients situated opposite the precedin and mountedon the stator of $40 the bobbino textile fibers under treatment;

said elements are subjected vto the disturbances occasioned in the apparatus, and are adapted to make contact with the aforesaid contact elements of the rotor, in case of any '85 disturbance to the functio g.

(c) an external electric circuit which is permanentl connected to the said contact elements o vice for stopping the driving shaft` of the doubling machine.

Numerous apparatus may beconstructed rotor may comprise two electrically conduct- 60 ing 1ings which are insulated from one anthe rotor; said' circuit can be' closed by said contact elements of the stator. 40- 'if any trouble occurs, and it comprises a deother. and also from the rotor, which rings are placed side by side and are permanently connected to the external electric circuit.

(b) Contact elements mounted on the stator and comprising the whole or a part of the following devices.

A forked contact member ldrawn by the stator in its motion is disposed in such manner as to make contact with the said conductlng rings when the stator departs from the w normal position.

A contactv member mounted opposite the two contact rings of the rotor, it being disosed upon a movable member which is sub- ]ected on the one hand to the tension of the 55 fibers to be twisted which travel'upon said member,.and on the other hand to the action of antagonistic means such as a spring, saidmovable member being vso disposed that the said movable contact member will make contact with the said contact element of the rotor when the tension of the fibers exceeds a given amount.

When the apparatus is stopped, for instance, by reason of a movement of the stator or of an excessive tension of the fibers, itV is then possible to examine the apparatus, to iind the cause of the irregular functionf ing, to remedy all such defects, and to again place the apparatus in operation.

My invention further relates to a modification of the preceding mechanism in which the5 antagonistic member combined with the movable guide subjected tol the tension of the fibers is provided with regulating means, in g5 order that yarns ofvarious kinds may be twisted in the same doubling machine.

The accompanyin diagrammatic drawings which aregiven way of example and which in no wise limit invention, relate to a doubling apparatus ofthe type described in the U. S. a plication for Patent Serial No.|283',687 iile .on the 7th June, 1928, in the name of Mr; Victor Baudonnel and my name, `and provided with a safety device constructed in conformity to the aforesaid'principle.

In the said drawings:

` Fig. 1 is an'axiaj'. longitudinal section of the entire apparatus.

e scope of the present 90 Fig. 2 is a similar section showing in detail the safety arrangement and the electric circuit with which it is connected.

Fig. 3' is a section along the line III-III of Fig. 2 showing the rings and the friction contact elements for supplying the current to the rotating parts. j

Fig. 4 is another section, on the line IV-IV of Fig. 2, of the friction contact elements sedescribed in the hereinabove mentioned application; as in this apparatus, yarn a to be doubled is wound on a bobbin 1 supported by a carrier 2 rotatable on journals 3 and 4 of a rotating cylinder 5 which is provided with two end plates 6 and 7, a peripheral opening 8 for introduction and removal of the coil, and a second similar orifice which cannot be seen in the drawings, diametrically opposite the former relative tothe axis The yarn leaving the bobbin 1 passes through the journal 3, round a pulley 9 in a tubular duct 9 secured to the rotating cylinder 5 and returns over a pulley 9 through the opposite journal 4 whence it emerges and is entrained by a suitable drawing apparatus. Bearings 3 and 4 support the journals 3 and 4. A pulley 10 actuated by a motor 11 (Fig. 2) imparts the desired rotational movement to the cylinder 5 by means of a belt not shown.

According to my invention and the apparatus shown Ain the drawings a contact arrangement which is mounted on one of the journals 3 consists of two contact rings 12, 13, electrically insulated from the journal by insulating elements 14, 15, 16 and from one another by an insulating ring 17.

Insulated electric conductors 18,19 positioned in a channel 20 in the journal 3 are connected with contact rings 21, 22 arranged externally of the vdrum 5 of the apparatus on the journal 3, these rings being also insulated from the journal 3 by insulated mountin s 23, 24.

rushes 25 and 26 carrled by a common axle 27 and insulated therefrom by an insulating sleeve 28 connect the rings 21, 22 per- 5. manently with an external electric circuit in parallel in this case with the same circuit as that supplying current to the motor 11, and hereinthis is a direct current circuit.

A switch 31 mounted in this circuit and connected with magnetic core 32 actuated by contact a coil 33 is inserted in the circuit of the conductors 29, 30 which are mounted in shunt on the distribution circuit 34, 35 feeding the motor 11.

The Whole being thus disposed, the carrier freely suspended from the arm 37, in such manner that its two branches can be moved only parallel with themselves in the case in which said arm 37 is moved by the carrier 2 about the journal 3. j

(2) a bracket 40 carrying three rods 41, 42, 43 about which the yarn to'be doubled travels in the direction of the arrow f during the operation of the apparatus, the rods 41, 42 being fixed to the member 40 whilst the rod 43 is movable about a pivot 44 (Fig. 5) provided with an insulated contact-carrier 45 terminating in a contact 46 which is herein located opposite and below the rings 12, 13 (Figs. 2 and 5).

A spring 47 arranged between the oscillating rod 43 and a fixed anchorage 48 determines the position of the rod 43; this spring 4may be regulated, for example, by means of a screw 49.

If, for any reason the carrier 2 is entrained in the rotational movement of the cylinder 5, the arm 37 participates in this movement and one of the branches of the bridge member 39 comes into contact simultaneously with the two rings 12, 13 and thus closes the electric circuit through the ycoil 33; then, the interyrupter 31, 32 is operated, the current flowing through the motor 11 is cut ofi', and the spindle is thus stopped.

Similarly if for any reason the yarn to be doubled does not travel regularly and is subjected to a tension greater than a fixed limiting value regulated by the tension of the spring 47, the rod 43 oscillates about the pivot 44, thereby re-connecting electrically the rings 12, 13, and thus the electric circuit is closed through the coil 32 and the switch 31 acts as in the previous case.

i Immediate stoppage of the spindleis thus effected. j

The arrangements described above can be modified in numerous Ways, and the various elements constituting the same may be differently constructed, thus for example,`instead of the bi olar contact arrangement described, a unipo ar contact devicemay be used, the return being effected. through the metal of -the apparatus. The apparatus may also be constructed so as to comprise only one of the arrangements described namely, that responding to the movements of said carrier or that responding lto an excess -f a projection 36 carrying an arm 37,

above,

of tension in the yarn to be doubled. Similarly the electric circuit utilized may be a direct current or alternating current c1rcu1t, etc.

Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be perfil formed, I declare that what I claim is 1. In an apparatus for twistinga textile fibers comprising a bobbin carrier suspended on bearings integral with a flyer, thesaid bobbin carrier being normally fixed in position, and the said flyer provided with channels to conduct the thread from the centre of the same radially outwards at one end of the same and inwards at the other end of the same, a channel for conducting'the thread from one of the said endsto the other and a driving shaft for the said flyer, the combination of contact elements carried by the flyer,

' contact elements arranged opposite the foregoing and carried by the bobbin carrier, these elements being subjected to the disturbances to which the appartus is exposed and constructed so as to be able to contact with the contact elements carried by the flyer, an externalelectric circuit permanently connected with the contact members of the flyer, this circuit being closed in case of disturbance by contact members of the bobbin carrier and comprising means for stopping the driving shaft of the apparatusas soon as the said c ircuit is closed. f

2. In an apparatus for twisting textile fibers comprising a. bobbin carrier suspended on. bearings integral with a flyer, they said bobbin carrier being normally fixed in position, and the said flyer provided with channels to; conduct the thread from the centre of the same radially outwards at one end of' the same and inwards at the other end of the same, a channel for conducting the thread from one of the said ends to the other and a driving shaft for .the said flyer, the combiv nation of contact elements carriedby the flyer, contact elements arranged opposite the foregoing and carried by the bobbin carrier, one of these elements being subjected to the displacements to which the bobbin carrier is exposed and then comingin conta ct with the contact elements carried by the flyer, an external electric circuit permanently connected with the contact members of the'flyer, this circuit being closed by contact members of the bobbin carrier in case of displacement of this latter and comprising means for stopplng the driving shaft of the apparatus as soon asl the saidl circuit is closed.

3. In an apparatus for twisting textile fibers comprising a bobbin'carrier suspended on bearings integral with a fiyer, the said bobbin -carrier bein sition, and the said yer provided with chan- -4 nels to conduct the thread from the centre G5 of the same radially` outwards atonevend of normally fixed in pothe said flyer and inwards at the other'end of the same, a channel for conducting the thread from one of the said ends to the other and a driving shaft for the said flyer, the combination of contact elements carried by the flyer, contact elements arranged opposite the foregoing and carried bythe bobbin carrier, one of these elements being controlled by means subjected to the tension of the material to be twisted and coming in contact with the contact elements carried by the flyer as soon as the tension of the said material exceeds a predetermined value,o

on bearings integral with a flyer, the saidbobbin carrier being normally fixed in position, and the said flyer provided with channels to conduct the thread from the centre of the same radially outwards at one end of the said flyer and inwards at the other end ofthe same, a channel for conducting the threadfrom one of the said ends to the other anda driving shaft for thefsaid flyer, the combination of contact elements carried by the flyer, contact elements arranged opposite the foregoing and carried by the bobbin carrier, one ofthese elements beingfsubjected to t-he movements to which the bobbin carrier is exposed and then coming in contact with the contact elements carried bythe flyer, another of these elements being controlledby means, subjected to the tension of thematerial to be twisted and coming incontact with the contact elements carried by the the contact' ofthe flyer, this circuit being closed by contact members of the bobbin carrier in each above lcase ofV disturbance and j comprising meansfor stopping the driving shaft of the apparatus as soon as the said circuit is closed. j

5. In an apparatus for twisting textile fibers comprising a bobbin carrier suspended on bearings integral with a flyer, the said bobbin carrier being normally fixedin position, and the said flyer provided with c hannels to conduct the thread from the centre of the same radially outwards at one end of the said flyer and inwards at the other end of the same, a channel for conducting the thread from one of the said ends to the other and a driving shaft for the said flyer, the combination of contact elements carried by the flyer, contact elements arranged opposite the foregoing and carried by the bobbin carrier,

one of these elements being controlled vby means subjected to the tension of the material to be twisted and coming in contact with `the contact elements carried by the flyer as soon as the tension ofthe material exceeds a predetermined value, regulating means for varying the said4 predetermined value, an external electric circuit permanently connected with the contact members of the flyer, this circuit being Iclosed by contact members of the bobbin carrier in the saidcase of ex- .the same, a channel for conducting the threadv from one of the said ends to the other and a. driving shaft for the said flyer, the combination of contact elements carried by the flyer, contact elements arranged opposite the foregoing and carried bythe bobbin carrier,

one of these elements being subjected to the movements to which the bobbin carrier is exposed and then coming in contact with the contact elements carried by the flyer, another of these elements being controlled by means subjected to the tension oft' the material tobe twisted and coming in contact with the contact elements carried by the flyer as soon as the tension of the material exceeds a predetermined value, regulating means for Varying the said predetermined value, an external electric circuit permanently connected y with the contactmembers of the flyer, this circuit beingso closed by Contact members of the bobbin carrier in each of the above cases of disturbance and comprising means for stopping the drivingshaft ofthe apparatusas soon as the said circuit is closed.

7. In an apparatus for twisting textile fibers comprising a bobbin carrier suspended in the hollow cylinder of a flyer on bearings integral with end plates of the said cylinder, the said bobbin carrier being normally fixed in position, the flyer consisting of the said hollow cylinder with end plates, said plates being provided with channels to conduct the thread from the centre of the same radially outwards in the case of one plate and inwards in the case of the other, a channel for conducting the thread from one plate to the other and adriving shaft for the said flyer, the combination of means producing automatie stoppage of the 'flyer as soon vlas the regular operation'of the. twisting` of the fibers is disturbed.

8. In an 'apparatus for .textile fibers comprising a bobbin carrier suspended in the hollow cylinder of a flyer on bearings integral with end plates of the said cylinder, the said bobbin carrier being normally fixed in position, the said flyer consisting of the said hollow cylinder with end plates, said plates being provided with channels to conduct the thread from the centre of the same radially outwards in the case of one vlate and inwards in the case of the other, a c annel for conducting the thread from one plate to the other and a driving shaft for the said flyer, the combination of contact elements carried by the flyer, contact elements arranged opposite the foregoing and carried by the bobbin carrier, these elements being subjected to the disturbances to which the apparatus is exposed and constructed so as to be able to -contact with the contact elements carried by 4the flyer, an external electric circuit permanently connected with the contact members of the flyer, this circuit being closed b contact members of the bobbin carrier an comprising means for stopping the driving shaft of the apparatus.

9. In an apparatus for twisting textile fibers comprising a bobbin carrier suspended in the hollow cylinder of a flyer on bearings integral with end plates of the said cylinder, the said bobbin carrier being normally 'fixed in position, a flyer consisting' of the 'said hol-- low cylinder with end plates, said plates being provided with channels to conduct the thread from the centre of the same radiall outwards in the case of one plate and inwar s in the case of the other, a channeln for conducting the thread from one plate to the other and a driving shaft for the said cylinder, the combination of two conducting rings electrically insulated from one another and from the flyer, these rings being arranged side by side on an inner shaft of one of the endplates ofthe flyer and permanently connected with an external electric circuit, an insulated conducting member in the form of an inverted V which issuspended from an arm on the bobbin carrier, the branches of which eX- tend on either side of the two conducting rings arranged on the flyer, so that one arm of the said V member comes in contact with the said conducting rings as soon as the bobbin carrier leaves its normal position, and the' external electric circuit permanently connected with the contact members of the flyer, this circuit being so closed by the contact member of the bobbin carrier and comprising means for stopping the driving shaft of the apparatus soon" as one armi-of the V member comes in contact with the conducting rings of the flyer.

10. In an apparatus for twisting textile fibers comprising a bobbin carrier suspended in the hollow cylinder of a flyer on bearings integral with end plates of the said cylinder, the said bobbin carrier being normally fixed lao in position, the said flyer consisting of the saidi hollow cylinder with end plates, said 'plates being provided with channels to conduct the thread from the centre of the same radially outwards in the case of one plate and inwards in the case of the other, a chan- `nel for conducting the thread from one plate to theA other and a driving shaft for the said 'iyer, the combination .of two conducting rings electrically insulated from onev another and from the flyer, these rings being arranged side by side on the inner shaft of one of the end plates of the lyer and permanently connected with an external electric circuit, and an insulated contact arranged on the" bobbin carrier opposite the two conducting rings of the flyer, means arrangedon the bobbin carrier, the said means being movable with relation to the said bobbin carrier, carrying the said contact and submitted on the onehand to the tension of the yarn to be twisted and passing over them, and on the other hand to an opposite determined action, these movable means being "arranged so that the movable contact just contacts simultaneously with the two contact ringsof thelyer as soon as the tension of the yarn exceeds a predetermined value, and the external electric circuit permanently connected with the contact members of the flyer, this circuit being so closed by the said tension contactof the bobbin carrier and comprising means for stop-, ping the driving shaft of the apparatus as soon as the said tension contact comes in contact with the conducting rings of the iiyer,

11. In an apparatus for twisting textile fibers comprising a bobbin carrier suspended in the hollow cylinder of a iiyer on bearings integral with end plates of the said cylinder,

the said bobbin carrier. being normally lixed' in position, the said iyer consisting'.y of the said hollow cylinder with end plates, said plates being provided with channels to conduct the thread from the centre of the same radially outwards inthe case of one plate and inwards in the case of the other, a channel for conductingthe thread from one plate hand to the tension of the ya to the other and a driving shaft for the 'said flyer,e the combination of two conducting -rings electrically insulated from one another and from the flyer, these rings being arranged side by side on the inner shaft'of one of thel endplates of the iiyer and permanently connected with an external electric circuit, three and passing over the said rods and on the other hand to an opposite determined action, an insulated contact controlled by the said .movable rod and arranged opposite the two 'conducting ringsof the flyer so that it just contacts simultaneously 'with these two contact rings of the ii er as soon as the tension of the yarn excee s a predetermined value, and the external electric circuit permanently .connected with the contact members of the flyer, this circuit bein so closed by the' said tension rod of the bin` carrier and comprising means for stopping the driving shaft of the apparatus as soon as the tension of the yarn exceeds the said predetermined value.

12. In an apparatus for twisting textile fibers comprising a bobbin carrier suspended in the hollow cylinder of a flyer on bearings integral with end plates of the said cylinder, the said bobbin carrier `being normally fixed in position, a flyer consisting of the said hollow cylinder with end plates, said plates being provided with channels to conduct the thread from the centre of the saine radially outwards inthe case of one plate and inwards in the case of the other, a channel for conducting the thread from one plate to the other and a driving shaft for the said flyer the combination of two conducting rings electrically insulated from one another and from the flyer,

these rings being arranged side by side on an inner shaft of vone of the lend plates of the flyer andr permanently connected with the said external electric circuit, an insulated conducting member in the form of an inverted v JV which is suspended from an arm on the bobbin carrier, the branches of which extend on either side of the two conducting rings arranged on the iyer, so that one arm of the said V member comes in contact with the said conducting'rings as soon as the bobbin carrier leaves its normal position, and an external electric circuit permanently connected with the contact members of the flyer, this circuit 4 being so closed by the contact member of the bobbin carrier, an insulated contact arranged on the bobbin carrier opposite the two conducting rings of the iyer` means arranged on the bobbin carrier, the said-means being movable with relation to the bobbin carrier, carrying` the said contact and submitted on the one hand to the tension of the yarn to be twisted' and passing over'them and on theother hand to an opposite determined action, these movable means being arranged so that the movable contact just'contacts simultaneously with the contactrings of the iiyer as soon as the tension ofthe yarn exceeds apredetermined value, the external circuit being then closedl l by the said tension contact of the bobbin carrier and gcomprising means forstopping the driving shaft ofthe apparatus as soon as one arm .ofthe aforesaid V member comes in connuiv 13. In an apparatus for twisting textile fibers comprising a bobbin carrier suspended in the hollow cylinder of a flyer on bearings integral with end plates of the said cylinder the said bobbin carrier being normally fixe in position, the said fiyer consisting of the said hollow cylinder with end plates, said plates being provided with channels to conduct the thread from the centre of the same radially outwards in the case of one plate and inwards in the case of the other, a channel for conducting the thread from one plate to the other and a driving shaft for the said fiyer, the combination of two conducting rings electrically insulated from one another and from the flyer, these rings being arranged side by side on the inner shaft of one of the end plates of the Hyer and permanently connected with an external electric circuit, and an insulated contact arranged on the bobbin carrier opposite the two conducting rings of the Hyer, means arranged on the bobbin carrier, the said means being movable with relation to the bobbin carrier, carrying the said contact and submitted on the one hand to the tension of the yarn to be twisted and passing over them and on the other hand to an opposite determined action, mean's for regulating the said opposite action, means carrying the movable Contact being arranged so that the said Contact just contacts simultaneously with the two contact rings of the flyer as soon as the tension of the yarn exceeds a predetermined value, and the, external electric circuit permanently connected with the contact members of the flyer, this circuit being so closed by the said tension contact of the bobbin carrier and comprising means for' stopping the drivingl shaft of the apparatus as soon as the said tension contact comes in contact with the conducting rings of the flyer.

'14. In an. apparatus for twisting textile fibers comprising a bobbin carrier suspended in the hollow cylinder of a fiyer on bearings integral with end plates of the said cylinder, the said bobbin carrier being normally-fixed in position, a fiyer consisting of thesaid hollow cylinder with end plates, said plates being provided with channels to' conduct the thread from the centre of the same radially outwards in the case of one plate and inwards in the case of the other, a channel for conducting the thread from one plate of the other anda driving shaft for the said cylinder, the combination of two conducting rings electrically insulated from one another and from the fiyer, these rings bein arranged side by side on the inner shaft o one of the end plates of the flyer and permanently connected with an externalelectric circuit, an

linsulated conductin member in the form of an inverted V whic is suspended from an arm on the bobbin carrier, the branches of which extend on either side of the two conducting rings arranged on the fiyer, so that one arm of the said V member comes in conan insulated contact arranged on the bobbin carrier opposite the two conducting rings of the flyer', means arranged on the bobbin carrier, the said means being movable with relation to the bobbin carrier, carrying the said contact and submitted on the one hand to the tension of the yarn to be twisted and passing over them and on the other hand to an opposite determined action, means for regulating the said opposite action, the means carrying the movable contact being arranged so that the said contact just contacts simultaneously with the two contact rings of the flyer as soon as the tension of the yarn exceeds a determined value, the external circuit being then 4closed by the said tension contact rof the bobbin carrier and comprising means for stopping the driving shaft of the appavratus as soon as one arm of the aforesaid member comes in contact with the conducting rings of the flyer and, also, as soon as the said tension contact comesin Contact with the said conducting rings.

In wltness whereof I have hereunto set my hand.

J ULE-S BERTHIER. 

